I did not have very high expectations for this book, although I will admit that I am a Twilight fan despite all of the criticism it has received. Even before reading, I expected this book to be a romancey, older version of Animorphs with the Yeerks taking over people's bodies and I was mostly right, except that it was nowhere near as exciting as the Animorph books. If one of my work friends hadn't told me how much she loved this book and that I needed to keep reading, I probably wouldn't have made it past the halfway point.
Because I did make it all the way to the end, I will say that things do happen, in contradiction to other reviews you may read, but it just takes a damn long time for them to occur. Literally, Stephenie Meyer packed all of the character and plot development that Twilight was lacking into this 600 page monster. There are whole pages like this:
"'Um...' I thought quickly. 'As long as I've been here, the ten minutes or so it took Ian to carry me here, and then maybe five more minutes before that?'
'At least twenty minutes, would you say?'
'Yes. Close to that.'" (page 346)
The minute details are annoying and then they become painful when you realize you're still only halfway through.
Don't get me wrong though, if the story had been shortened and cut down all of the pointlessness, it would have been terrific. Most of the story is written from the point of view of The Wanderer, an alien life form inhabiting the body of human girl Melanie. Wanderer is having a problem though, as Melanie doesn't seem to want to "go away" like she's supposed to and surrender her body to Wanderer. Instead they bond, share memories, become friends, and eventually leave the alien society to search for Melanie's, hopefully, still human family.
Even the love story exceeded my expectations for Stephenie Meyer. There were no generic cliches or love triangles and was actually very sweet, although predictable.
All in all, I would not recommend this book to people who simply loved Twilight and are hoping for more of the same blah blah blah, but instead to scifi readers or fans of YA dystopia novels.